VX-127 OPERATING MANUAL

UHF FM TRANSCEIVER VX-127 OPERATING MANUAL VERTEX STANDARD CO., LTD. 4-8-8 Nakameguro, Meguro-Ku, Tokyo 153-8644, Japan VERTEX STANDARD US Headquarters 10900 Walker Street, Cypress, CA 90630, U.S.A. YAESU EUROPE B.V. P.O. Box 75525, 1118 ZN Schiphol, The Netherlands YAESU UK LTD. Unit 12, Sun Valley Business Park, Winnall Close Winchester, Hampshire, SO23 0LB, U.K. VERTEX STANDARD HK LTD. Unit 5, 20/F., Seaview Centre, 139-141 Hoi Bun Road, Kwun Tong, Kowloon, Hong Kong

General Description... 1 Accessories & Options... 2 Controls & Connections... 3 Top & Front Panel... 3 LCD... 4 Side Panel... 5 Keypad Functions... 6 Installation of Accessories... 8 Antenna Installation... 8 Installation of FNB-83 Battery Pack... 8 Battery Charging... 9 Low Battery Indication... 9 Belt Clip Installation... 10 Installation of FBA-25A Battery Case... 10 Interface of Packet TNCs... 11 Operation... 12 Switching Power On and Off... 12 Adjusting the Audio Volume Level... 12 Squelch Adjustment... 13 Frequency Navigation... 13 Transmission... 15 Advanced Operation... 16 Keyboard Locking... 16 Keypad/LCD Illumination... 17 Disabling the Keypad Beeper... 17 RF Squelch... 18 Checking the Battery Voltage... 18 Repeater Operation... 19 Repeater Shifts... 19 Automatic Repeater Shift (ARS)... 19 Manual Repeater Shift Activation... 20 VFO Split Mode... 21 CTCSS/DCS/EPCS Operation... 23 CTCSS Operation... 23 DCS Operation... 24 Tone Search Scanning... 25 EPCS (Enhanced Paging & Code Squelch)... 26 CTCSS/DCS/EPCS Bell Operation... 27 Split Tone Operation... 28 Tone Calling (1750 Hz)... 28 Memory Mode... 29 Memory Storage... 29 Storing Independent Transmit Frequencies ( Odd Split )... 29 Memory Recall... 30 HOME Channel Memory... 30 Labeling Memories... 31 Memory Offset Tuning... 32 Deleting Memories... 32 Memory Bank Operation... 33 Moving Memory Data to the VFO... 34 Memory Only Mode... 34 Contents Scanning... 36 VFO Scanning... 37 Manual VFO Scan... 37 Programmed VFO Scan... 37 Memory Scanning... 38 How to Skip (Omit) a Channel during Memory Scan Operation... 38 Preferential Memory Scan... 39 Memory Bank Scan... 40 Programmable (Band Limit) Memory Scan (PMS)... 41 Priority Channel Scanning (Dual Watch)... 42 Automatic Lamp Illumination on Scan Stop... 44 Band Edge Beeper... 44 Emergency Feature... 46 Emergency Channel Operation... 46 Emergency Automatic ID (EAI) Feature... 47 Smart Search Operation... 49 Internet Connection Feature... 50 ARTS (Automatic Range Transponder System)... 52 DTMF Operation... 55 DTMF Pager Operation... 57 Miscellaneous Settings... 60 Password... 60 Changing the Channel Steps... 61 Receive Battery Saver Setup... 62 TX Battery Saver... 62 Disabling the TX/BUSY Indicator... 63 Automatic Power-Off (APO) Feature... 63 Transmitter Time-Out Timer (TOT)... 64 Busy Channel Lock-Out (BCLO)... 64 DCS Code Inversion... 65 Changing the TX Deviation Level... 66 Reset Procedures... 67 Cloning... 68 Set Mode... 70 Specifications... 83 Installation of the FTD-7 DTMF Pager Unit... 84

GENERAL DESCRIPTION The VX-127 is a compact, high-performance subnersible FM hand-held providing up to five watts of RF power and wealth of convenient features for the 2-meter amateur band. New and exciting features of the VX-127 are are the Emergency Automatic ID (EAI) function, that will automatically cause your VX-127 to transmit your callsign and engage your rig s microphone, even if you are disabled and unable to press the PTT switch; Enhanced Paging and Code Squelch (EPCS), that allows you to page a particular station and only receive calls from that station, if desired; and a security Password feature, that will allow you to turn on and operate your transceiver only after you enter your Password. Additional features include a convenient access key for Vertex Standard s WIRES (Widecoverage Internet Repeater Enhancement System), a transmit Time-Out Timer (TOT), Automatic Power-Off (APO), Automatic Repeater Shift (ARS), Vertex Standard s exclusive ARTS (Auto-Range Transponder System) which beeps the user when you move out of communications range with another ARTS equipped station, plus provision for reduction of the TX deviation in areas of high channel congestion. And an RF squelch circuit allows the owner to set the squelch to open at a programmable setting of the S- Meter, thus reducing guesswork in setting the squelch threshold. We appreciate your purchase of the VX-127, and encourage you to read this manual thoroughly, so as to learn about the many exciting features of your exciting new Vertex Standard hand-held transceiver! : IPX-7 Specification for submersibility: 3 ft. for 30 minutes VX-127 OPERATING MANUAL 1

ACCESSORIES & OPTIONS SUPPLIED ACCESSORIES FNB-83 7.2 V, 1,400 mah Rechargeable Nickel-Metal Hydride Battery Pack NC-88B/C Overnight Battery Charger (10-Hour) YHA-69 Antenna Quick Draw Belt Clip Operating Manual Warranty Card AVAILABLE OPTIONS FNB-83 7.2 V, 1,400 mah Rechargeable Nickel-Metal Hydride Battery Pack NC-88B/C/U Overnight Battery Charger (10-Hour) VAC-370 Desktop Rapid Charger CD-26 Charger Cradle FBA-25A Dry Cell Battery Case for 6 AA Alkaline Cells (not supplied) CN-3 BNC-to-SMA Adapter CT-91 Microphone Adapter E-DC-5B DC Cable with Cigarette-Lighter Adapter E-DC-6 DC Cable; plug and wire only MH-57A4B Speaker/Microphone CMP460A Waterproof Speaker/Microphone VC-27 Earpiece/Microphone VC-24 VOX Headset FTD-7 DTMF Paging Unit : B suffix is for use with 100-120 VAC, C suffix is for use with 230-240 VAC, and U suffix is for use with 230 VAC. Availability of accessories may vary. Some accessories are supplied as standard per local requirements, while others may be unavailable in some regions. This product is designed to perform optimally when used with genuine Vertex Standard accessories. Vertex Standard shall not be liable for any damage to this product and/or accidents such as fire, leakage or explosion of a battery pack, etc., caused by the malfunction of non- Vertex Standard accessories. Consult your Vertex Standard dealer for details regarding these and any newly-available options. Connection of any non-vertex Standard-approved accessory, should it cause damage, may void the Limited Warranty on this apparatus. 2 VX-127 OPERATING MANUAL

CONTROLS & CONNECTORS (TOP & FRONT PANELS) 1 Antenna Jack Connect the supplied rubber flex antenna (or another antenna presenting a 50-Ohm impedance) here. 2 MIC/SP Jack This four-conductor miniature jack provides connection points for microphone audio, earphone audio, PTT, and ground. 1 2 3 4 Do not allow the VX-127 to become submerged in water while the plastic cover over the MIC/SP jack is removed. 3 VOL/PWR Knob Turn this control clockwise to turn the radio on and to increase the volume. Counterclockwise rotation into the click-stop will turn the radio off. 4 DIAL Knob This (inner) 20-position detented rotary switch is used for setting the operating frequency, and also is used for menu selections and other adjustments. 5 Speaker The internal speaker is located here. 6 LCD (Liquid Crystal Display) The display shows the current operating conditions, as described on the next page. 7 Keypad These 8 keys select many of most important operating features on the VX-127. The functions of the keys are described in detail on the pages to follow. 8 TX/BUSY Indicator Lamp This indicator glows green when the squelch opens, and turns red during transmit. 9 MIC The internal microphone is located here. 5 6 7 VX-127 OPERATING MANUAL 3 8 9

CONTROLS & CONNECTORS (LCD) Memory Channel Number Skip Memory Channel or Preferential Memory Channel Repeater Shift Direction CTCSS/DSC Operation Priority Channel Memory Bank Active Secondary Keypad Active Internet Connection Feature Active Bell Alarm Active Operating Frequency Battery Indicator Low TX Power Selected DTMF Autodial Active Dual Watch Active Battery Saver Active S- & PO Meter Key Lock Active Automatic Power-Off Active Emergency Automatic ID (EAI) Feature Active 4 VX-127 OPERATING MANUAL

CONTROLS & CONNECTORS (SIDE PANEL) 1 PTT (Push To Talk) Switch Press this switch to transmit, and release it (to receive) after your transmission is completed. 2 MONI Switch Pressing this switch disables the noise squelching action, allowing you to hear very weak signals near the background noise level temporarily. Press the [F] key on the keypad first, then press this switch to enable to adjustment of the squelch threshold level. 3 EXT DC Jack This coaxial DC jack allows connection to an external DC power source (6-16V DC). The center pin of this jack is the Positive (+) connection. Do not allow the VX-127 to become submerged in water while the rubber cap over the EXT DC jack is removed. 1 2 3 VX-127 OPERATING MANUAL 5

CONTROLS & CONNECTORS (KEYPAD FUNCTIONS) Primary Function (PRESS KEY) Engages the Set (Menu) Mode. Selects the desired transmit power output level. Secondary Function (PRESS [F] + KEY) Activates the Internet Connection feature. Activates the Key Lockout feature. Third Function (PRESS & HOLD KEY) Activates the EMERGENCY feature. Activates the Key Lockout feature. Primary Function (PRESS KEY) Secondary Function (PRESS [F] + KEY) Third Function (PRESS & HOLD KEY) Activates the Alternate key function. Disables the Alternate key function. Activates the Memory Write mode (for memory channel storage). Sets the frequency control to the Memory Recall mode. Activates the Memory Tune mode while in the Memory Recall mode. Selects the Memory Scan Skip channel-selection mode. Starts the programmable scanner upward (toward a higher frequency or a higher channel number) 6 VX-127 OPERATING MANUAL

CONTROLS & CONNECTORS (KEYPAD FUNCTIONS) Primary Function (PRESS KEY) Reverses the transmit and receive frequencies while working through a repeater. Increases the VFO frequency by one step or moves the memory channel to the next-highest channel. Secondary Function (PRESS [F] + KEY) Third Function (PRESS & HOLD KEY) Switches to the Home (favorite frequency) Channel. None Tunes the VFO frequency upward in 1 MHz steps. Starts the scanner upward (toward a higher frequency or a higher channel number). Primary Function (PRESS KEY) Secondary Function (PRESS [F/W] + KEY) Sets frequency control to the VFO mode. Toggles the VFO between VFO A and VFO B while in the VFO mode. Activates the Priority (Dual Watch) function. Decreases the VFO frequency by one step or moves the memory channel to the next-lowest channel. Tunes the VFO frequency downward in 1 MHz steps. Third Function (PRESS & HOLD KEY) Starts the programmed VFO scanner upward while in the VFO mode. Selects the Memory Bank while in the Memory Recall mode. Starts the scanner downward (toward a lower frequency or a lower channel number). : You can exchange the function between the primary (press key) function and secondary (press [F] key +) function, if desired. See page 79 for details. VX-127 OPERATING MANUAL 7

INSTALLATION OF ACCESSORIES ANTENNA INSTALLATION The supplied antenna provides good results over the entire frequency range of the transceiver. However, for enhanced reception on certain non-amateur frequencies, you may wish to connect an antenna designed specifically for that frequency range, as the supplied antenna is necessarily a compromise outside the Amateur band, and cannot be expected to provide high performance at all frequencies. To install the supplied antenna, hold the bottom end of the antenna, then screw it onto the mating connector on the transceiver until it is snug. Do not over-tighten by use of extreme force. Notes: Never transmit without having an antenna connected. When installing the supplied antenna, never hold the upper part of the antenna while screwing it onto the mating connector on the transceiver. If using an external antenna for transmission, ensure that the SWR presented to the transceiver is 1.5:1 or lower, to avoid excessive feedline loss. INSTALLATION OF FNB-83 BATTERY PACK The FNB-83 is a high-performance Ni-MH battery providing high capacity in a compact package. Under normal use, the FNB-83 may be used for approximately 300 charge cycles, after which operating time may be expected to decrease. If you have an old battery pack which is displaying capacity which has become diminished, you should replace the pack with a new one. Installation of the battery is easy and quick: Insert the battery pack into the battery compartment on the back of the radio while tilting the Belt Clip outward, then close the Battery Pack Latch until it locks in place with a Click. To remove the battery, turn the radio off and remove any protective cases. Open the Battery Pack Latch on the bottom of the radio, then slide the battery downward and out from the radio while tilting the Belt Clip out of the way. 8 VX-127 OPERATING MANUAL

INSTALLATION OF ACCESSORIES BATTERY CHARGING If the battery has never been used, or its charge is depleted, it may be charged by connecting the NC-88 Overnight Battery Charger, as shown in the illustration, to the EXT DC jack. If only 12 ~ 16 Volt DC power is available, the optional E-DC-5B DC Cable (with its cigarette lighter plug) or E-DC-6 DC Cable (plug and wire only) may also be used for charging the battery. A fully-discharged pack will be charged completely in 10 hours. Disconnect the NC-88 from the EXT DC jack and the AC line outlet. NC-88 E-DC-5B E-DC-6 Important Note The NC-88 is not designed to power the transceiver for operation (reception or transmission). Do not leave the NC-88 connected to the transceiver for continuous periods in excess of 24 hours. Long term overcharging can degrade the Ni-MH battery pack and significantly shorten its useful life. Please be advised that the NC-88 may contribute noise to TV and radio reception in the immediate vicinity, so we do not recommend its use adjacent to such devices. LOW BATTERY INDICATION As your battery discharges during use, the voltage will gradually become lower. When the battery voltage is becoming too low for reliable operation, the icon will blink on the LCD display, indicating that the battery pack must be recharged before further use. Avoid recharging Ni-MH batteries before the indicator is observed, as this can degrade the charge capacity of your Ni-MH battery pack. VX-127 OPERATING MANUAL 9

INSTALLATION OF ACCESSORIES BELT CLIP INSTALLATION Connect the hanger to the rear of the VX-127, with the notch pointing directly up, using the supplied screw (Figure 1). Use only the screw included with the clip to mount the clip to the back of the VX-127. Clip the Quick-Draw Belt Clip onto your belt (Figure 2). To install the VX-127 into the Quick-Draw Belt Clip, align the hanger with the Quick- Draw Belt Clip, and slide the VX-127 into its slot until a click is heard (Figure 3). To remove the VX-127 from the Quick-Draw Belt Clip, rotate the VX-127 180 degrees, then slide the VX-127 out from the Quick-Draw Belt Clip (Figure 4). Figure 1 Figure 3 Figure 2 Figure 4 INSTALLATION OF FBA-25A ALKALINE BATTERY CASE (OPTION) The optional FBA-25A Battery Case allows operation of the VX-127 using six AA size Alkaline batteries. When installing batteries, insert the ( ) end first, then press in the (+) end so the battery snaps into place. Always replace all six batteries at the same time, paying attention to the polarity indicated inside the case. The FBA-25A must not be used with rechargeable cells. The FBA-25A does not contain the thermal and over-current protection circuits (provided in the FNB series of Ni-MH Battery Packs) required when utilizing Ni-Cd and Ni-MH cells. Note that the power output and battery life will be much shorter when using Alkaline AA cells. They should be considered an emergency backup power source only, for this reason. 10 VX-127 OPERATING MANUAL

INTERFACE OF PACKET TNCS The VX-127 may be used for Packet operation, using the optional CT-91 Microphone Adapter (available from your Yaesu dealer) for easy interconnection to commonly-available connectors wired to your TNC. You may also build your own cable, using a fourconductor miniature phone plug, per the diagram below. The audio level from the receiver to the TNC may be adjusted by using the VOL knob, as with voice operation. The input level to the VX-127 from the TNC should be adjusted at the TNC side; the optimum input voltage is approximately 5 mv at 2000 Ohms. Be sure to turn the transceiver and TNC off before connecting the cables, so as to prevent voltage spikes from possibly damaging your transceiver. When you are operating on Packet, switch the Receive Battery Saver OFF, as the sleep cycle may collide with the beginning of an incoming Packet transmission, causing your TNC not to receive the full data burst. See page 62 for details regarding Battery Saver setup. VX-127 OPERATING MANUAL 11

OPERATION Hi! I m R. F. Radio, and I ll be helping you along as you learn the many features of the VX-127. I know you re anxious to get on the air, but I encourage you to read the Operation section of this manual as thoroughly as possible, so you ll get the most out of this fantastic new transceiver. Now...let s get operating! SWITCHING POWER ON AND OFF Be sure the Battery Pack is installed, and that the battery is fully charged. Connect the antenna to the top panel ANTENNA jack. Rotate the top panel s VOL/PWR knob (inner knob) out of the click-stop to turn on the radio. The current DC supply voltage will be indicated on the display for 2 seconds. After this 2 second interval, the display will resume its normal indication of the operating frequency. To turn the radio off, turn the VOL/PWR knob fully counter-clockwise into the click stop position. ADJUSTING THE AUDIO VOLUME LEVEL Rotate the VOL/PWR knob (inner knob) to adjust the receiver level for a comfortable listing level, using the background noise as a reference. Clockwise rotation increases the volume level. 12 VX-127 OPERATING MANUAL

OPERATION SQUELCH ADJUSTMENT To set the squelch, press the [F] key, followed by the MONI switch just below the PTT switch on the left side of the transceiver. Now rotate the DIAL (outer knob) to find the lowest setting ( LVL 1 through LVL 15 ) that will just silence the background noise. Do not use a higher setting than necessary, or sensitivity to weak incoming signals will be degraded. Press the PTT switch momentarily when you ve made the new setting; this will return you to normal operation (without having transmitted). 1) A special RF Squelch feature is provided on this radio. This feature allows you to set the squelch so that only signals exceeding a certain S-meter level will open the squelch. See page 18 for details. 2) If you re operating in an area of high RF pollution, you may need to consider Tone Squelch operation using the built-in CTCSS Decoder. This feature will keep your radio quiet until a call is received from a station sending a carrier which contains a matching (subaudible) CTCSS tone. Or, if your friends have radios equipped with DCS (Digital Coded Squelch) like your VX-127 has, try using that mode for silent monitoring of busy channels. FREQUENCY NAVIGATION The VX-127 will initially be operating in the VFO mode, a channelized system which allows free tuning throughout the currently-selected operating band. Three basic frequency navigation methods are available on the VX-127: 1) Tuning Dial Rotation of the DIAL (outer knob) allows tuning in the pre-programmed steps established for the current operating band. Clockwise rotation of the DIAL causes the VX-127 to be tuned toward a higher frequency, while counter-clockwise rotation will lower the operating frequency. If you press the [F] key momentarily, then rotate the DIAL, frequency steps of 1 MHz will be selected. This feature is extremely useful for making rapid frequency excursions over the wide tuning range of the VX-127. VX-127 OPERATING MANUAL 13

OPERATION FREQUENCY NAVIGATION 2) Scanning Press and hold in either the [ (MHz)] or [ (MHz)] key for one second to initiate upward or downward scanning, respectively (Manual VFO Scan). For scanning within a limited sub-band range, from the VFO mode, press and hold in the [MR(SKIP)] key for one second to begin scanning toward a higher frequency within the previously-defined sub-band (Programmed VFO Scan). Details regarding sub-band setup may be found on page 37. If you wish to reverse the direction of the scan (i.e. toward a lower frequency, instead of a higher frequency), just rotate the DIAL one click in the counter-clockwise direction while the VX-127 is scanning. The scanning direction will be reversed. To revert to scanning toward a higher frequency once more, rotate the DIAL one click clockwise. (MANUAL VFO SCAN) (PROGRAMMED VFO SCAN) The scanner will stop when it receives a signal strong enough to break through the Squelch threshold. The VX-127 will then hold on that frequency according to the setting of the RESUME mode (Set Mode Item 32: RESUME). Press the PTT switch momentarily to cancel the scanning. This only stops the scan; it does not cause transmission to occur. See page 36 for details regarding Scan Operation. 14 VX-127 OPERATING MANUAL

TRANSMISSION OPERATION Once you have set up an appropriate frequency inside the 144 MHz Amateur band on which the VX-127 can transmit, you re ready to go on the air! These are the most basic steps; more advanced aspects of transmitter operation will be discussed later. To transmit, press the PTT switch, and speak into the front panel microphone (located in the lower left-hand corner of the speaker grille) in a normal voice level. The TX/BUSY indicator will glow red during transmission. To return to the receive mode, release the PTT switch. During transmission, the relative power level will be indicated on the bar graph at the bottom of the LCD; full scale deflection confirms High Power operation, while deflection of two bars indicates Low Power operation. Five bars indicate Medium Power operation. Additionally, the LOW icon will appear at the bottom of the display while operating on the Low Power and Medium Power settings. 1) If you re just talking to friends in the immediate area, you ll get much longer battery life by switching to Low Power operation, described in the next chapter. And don t forget: always have an antenna connected when you transmit. 2) Transmission is possible only on the 144 MHz amateur band. Changing the Transmitter Power Level To change the power level: Press the [LOW(LOCK)] key. The LCD shows the current power output level. Rotate the DIAL knob to select the desired power output level. Available selections are HIGH (5 W), MID (2 W), and LOW (0.5 W). When you have made your choice, press the PTT switch to save the new setting and return to normal operation. LOW POWER MID POWER HIGH POWER 1) The VX-127 is smart! When you store memories, you can store the power output settings separately in each memory, so you don t waste battery power when using very close-in repeaters! 2) When you are operating on the Low or Medium power setting, you can press the [F] key, then press the PTT switch, to cause the VX-127 to transmit (temporarily) on High power. After one transmission, the power level will revert to the previously-selected ( Low or Medium power) setting. VX-127 OPERATING MANUAL 15

ADVANCED OPERATION Now that you re mastered the basics of VX-127 operation, let s learn more about some of the really neat features. KEYBOARD LOCKING In order to prevent accidental frequency change or inadvertent transmission, various aspects of the VX-127 s DIAL and keypad may be locked out. The possible lockout combinations are: LK KEY: Just the front panel keypad is locked out LKDIAL: Just the top panel DIAL is locked out LK K+D:Both the keypad and DIAL are locked out (factory default) LK PTT: The PTT switch is locked out (TX not possible) LK P+K: Both the PTT switch and keypad are locked out LK P+D:Both the PTT switch and DIAL are locked out LK ALL: All of the above are locked out To lock out some or all of the keys: 1. Press the [SET( )EMG] key momentarily to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 26: LOCK. 3. Press the [F] key momentarily to enable adjustment of this Item. 4. Rotate the DIAL knob to choose between one of the locking schemes as outlined above. 5. When you have made your selection, press the PTT switch to save the new setting and return to normal operation. To activate the locking feature, (1) press and hold in the [LOW(LOCK)] key for one second, or (2) press the [F] key, followed by the [LOW(LOCK)] key. The icon will appear on the LCD. To cancel locking, repeat this process. 16 VX-127 OPERATING MANUAL

KEYPAD/LCD ILLUMINATION ADVANCED OPERATION Your VX-127 includes a reddish illumination lamp which aids in nighttime operation. The reddish illumination yields clear viewing of the display in a dark environment, with minimal degradation of your night vision. Three options for activating the lamp are provided: KEY Mode: Illuminates the Keypad/LCD lamp for five seconds when you rotate the DIAL knob or press the keypad or any switch (except PTT switch). This is the factory-programmed default setting. CONT Mode: Illuminates the Keypad/LCD lamp continuously. OFF Mode: Disables the Keypad/LCD lamp. Here is the procedure for setting up the Lamp operating mode: 1. Press the [SET( )EMG] key momentarily to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 25: LAMP. 3. Press the [F] key momentarily to enable adjustment of this Item. 4. Rotate the DIAL knob to select one of the three modes described above. 5. When you have made your choice, press the PTT switch to save the new setting and return to normal operation. DISABLING THE KEYPAD BEEPER A keypad beeper provides useful audible feedback whenever a keypad is pressed. If you want to turn the beep off: 1. Press the [SET( )EMG] key momentarily to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 6: BEEP. 3. Press the [F] key momentarily to enable adjustment of this Item. 4. Rotate the DIAL knob to change the setting to OFF. 5. Press the PTT switch to save the new setting and return to normal operation. 6. To turn the beep back on again, select KEY or KEY+SC (factory default) in step 4 above. KEY: The beeper sounds when you press the keypad. KEY+SC: The beeper sounds when you press the keypad, or when the scanner stops. VX-127 OPERATING MANUAL 17

ADVANCED OPERATION RF SQUELCH A special RF Squelch feature is provided on this radio. This feature allows you to set the squelch so that only signals exceeding a certain S-meter level will open the squelch. To set up the RF squelch circuit for operation, use the following procedure: 1. Press the [SET( )EMG] key momentarily to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 34: RF SQL. 3. Press the [F] key momentarily to enable adjustment of this Item. 4. Rotate the DIAL knob to select the desired signal strength level for the squelch threshold (S-1, S-2, S-3, S-4, S-5, S-6, S-8, S-FULL, or OFF). 5. Press the PTT switch to save the new setting and return to normal operation. CHECKING THE BATTERY VOLTAGE The VX-127 s microprocessor includes programming which will measure the current battery voltage. 1. Press the [SET( )EMG] key momentarily to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 12: DC VLT. 3. Press the [F] key momentarily to display the current DC voltage being supplied. 4. Press the [F] key, followed by the PTT switch to return to normal operation. 18 VX-127 OPERATING MANUAL

REPEATER OPERATION Repeater stations, usually located on mountaintops or other high locations, provide a dramatic extension of the communication range for low-powered hand-held or mobile transceivers. The VX-127 includes a number of features which make repeater operation simple and enjoyable. REPEATER SHIFTS The VX-127 has been configured, at the factory, with the repeater shift set to 1.6 MHz, 7.6 MHz, or 5 MHz (USA version). Depending on the part of the band in which you are operating, the repeater shift may be either downward ( ) or upward (+), and one of these icons will appear at the top of the LCD when repeater shifts have been enabled. AUTOMATIC REPEATER SHIFT (ARS) The VX-127 provides a convenient Automatic Repeater Shift feature, which causes the appropriate repeater shift to be applied automatically whenever you tune into the designated repeater sub-bands in your country. These sub-bands are shown below. If the ARS feature does not appear to be working, you may have accidentally disabled it. To re-enable ARS: 1. Press the [SET( )EMG] key momentarily to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 4: ARS. 3. Press the [F] key momentarily to enable adjustment of this Item. 4. Rotate the DIAL knob to select ARS. ON. 5. When you have made your selection, press the PTT switch to save the new setting and return to normal operation. Version A 433.00 433.40 ARS-Repeater Subbands 438.20 439.45 440.0 445.0 450.0 Euro Version 2 Euro Version 1 VX-127 OPERATING MANUAL 19

REPEATER OPERATION MANUAL REPEATER SHIFT ACTIVATION If the ARS feature has been disabled, or if you need to set a repeater shift direction other than that established by the ARS, you may set the direction of the repeater shift manually. To do this: 1. Press the [SET( )EMG] key momentarily to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 35: RPT.MOD. 3. Press the [F] key momentarily to enable adjustment of this Item. 4. Rotate the DIAL knob to select the desired shift among RPT., RPT.+, and RPT.OFF. 5. When you have made your selection, press the PTT switch to save the new setting and return to normal operation. If you make a change in the shift direction, but still have Automatic Repeater Shift still engaged (see previous section), when you change frequency (by rotating the DIAL knob, for example) the ARS will over-ride your manual setting of the shift direction. Turn ARS off if you do not wish this to happen. If you make a change in the repeater shift on a memory channel that you already stored, the radio will consider this a temporary change unless you store the memory once more, this time with the desired repeater shift engaged. Changing the Default Repeater Shifts If you travel to a different region, you may need to change the default repeater shift so as to ensure compatibility with local operating requirements. To do this, follow the procedure below: 1. Press the [SET( )EMG] key momentarily to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 41: SHIFT. 3. Press the [F] key momentarily to enable adjustment of this Item. 4. Rotate the DIAL knob to select the new repeater shift magnitude. 5. When you have made your selection, press the PTT switch to save the new setting and return to normal operation. If you just have one odd split that you need to program, don t change the default repeated shifts using this Set Mode Item. Enter the transmit and receive frequencies separately, as shown on page 29. 20 VX-127 OPERATING MANUAL

REPEATER OPERATION MANUAL REPEATER SHIFT ACTIVATION Checking the Repeater Uplink (Input) Frequency It often is helpful to be able to check the uplink (input) frequency of a repeater, to see if the calling station is within direct ( Simplex ) range. To do this, just press the [REV(HOME)] key. You ll notice that the display has shifted to the repeater uplink frequency. Press the [REV(HOME)] key again to cause operation to revert to normal monitoring of the repeater downlink (output) frequency. While you are listening on the input frequency to the repeater using the [REV(HOME)] key, the repeater offset icon will blink. The configuration of this key may be set either to RV (for checking the input frequency of a repeater), or HM (for instant switching to the Home channel for the band you are operating on). To change the configuration of this key, use Set Mode Item 33: REV/HM. See page 79. VFO SPLIT MODE For working on repeaters with odd splits, or communicating with astronauts on orbiting space vehicles, it may be necessary to use non-standard splits between the receive and transmit frequency. If the application is infrequent enough not to warrant the dedication of a memory channel for this purpose, the VFO Split mode may be used. Here is the procedure for going Split: 1. Press the [VFO(PRI)] key, as needed, to select VFO-A. Set VFO-A for the desired receiving (downlink) frequency (e.g.145.800 MHz). 2. Now press the [VFO(PRI)] key, and set VFO-B for the desired transmit (uplink) frequency (e.g. 144.490 MHz). 3. Press the [VFO(PRI)] key once more to re-establish VFO-A as the Main (receive) VFO. 4. Press the [SET( )EMG] key momentarily to enter the Set mode. 5. Rotate the DIAL to select Set Mode Item 50: VFO.SPL. 6. Press the [F] key, then rotate the DIAL to set this function VSP. ON. 7. Press the PTT switch once to save the new setting and exit to normal operation. 8. You will now be operating in the Split mode. When you press the PTT switch to transmit, you will observe that VFO-A and VFO-B will reverse positions. The VFO selection indicator -b- will blink while the transceiver is transmitting, this means that the VFO Split feature is now activated. VX-127 OPERATING MANUAL 21

REPEATER OPERATION VFO SPLIT MODE 9. If you need to modify the VFO-B (transmit) frequency (for Doppler Shift correction, etc.), just press the [VFO(PRI)] key, then make the necessary change, then press [VFO(PRI)] key once more to restore VFO-A to the receive VFO position. 10. When you have finished with Split operation, re-enter the Set mode, and change Set Mode Item 50: VFO.SPL to VSP.OFF. A split frequency pair set up via the VFO Split feature cannot be stored directly into memory. You can, however, store odd frequency pairs using a different (slightly simpler) procedure. See page 29. 22 VX-127 OPERATING MANUAL

CTCSS/DCS/EPCS OPERATION CTCSS OPERATION Many repeater systems require that a very-low-frequency audio tone be superimposed on your FM carrier in order to activate the repeater. This helps prevent false activation of the repeater by radar or spurious signals from other transmitters. This tone system, called CTCSS (Continuous Tone Coded Squelch System), is included in your VX-127, and is very easy to activate. CTCSS setup involves two actions: setting the Tone Mode and then setting of the Tone Frequency. These actions are set up by Set mode. 1. Press the [SET( )EMG] key momentarily to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 44: SQL.TYP. 3. Press the [F] key momentarily to enable adjustment of this Item. 4. Rotate the DIAL knob so that TONE indication appears on the display; this activates the CTCSS Encoder, for access to repeaters requiring a CTCSS tone. 5. Rotation of the DIAL knob one more click in step 2 above will cause the TSQL notation to appear. When TSQL is displayed, this means that the Tone SQueLch system is active, which mutes your VX-127 s receiver until it receives a call from another radio sending out a matching CTCSS tone. This can help keep your radio quiet until a specific call is received, which may be helpful while operating in congested areas of the band. 1) You may notice a REV TN indication on the display while you rotate the DIAL knob in this step; this means that the Reverse Tone Squelch system is active, which mutes your VX-127 s receiver (instead of opening the squelch) when it receives a call from the radio sending a matched CTCSS tone. The icon will blink on the display when the Reverse Tone Squelch system is activated. 2) You may notice the DCS and ECS indications on the display while you rotate the DIAL knob still more. We ll discuss the Digital Code Squelch system (for DCS ) and Enhanced Paging & Code Squelch (for ECS ) later. 6. When you have made your selection of the CTCSS tone mode, press the [F] key to save the new setting. 7. Rotate the DIAL knob to select Set Mode Item 46: TN FRQ. 8. Press the [F] key momentarily to enable adjustment of the CTCSS frequency. 9. Rotate the DIAL knob until the display indicates the Tone Frequency you need to be using (ask the repeater owner/operator if you don t know the tone frequency). VX-127 OPERATING MANUAL 23

CTCSS/DCS/EPCS OPERATION CTCSS OPERATION 7. When you have made your selection, press the [F] key momentarily, then press the PTT switch to save the new settings and exit to normal operation. This is different than the usual method of restoring normal operation, and it applies only to the configuration of the CTCSS/DCS frequencies. CTCSS TONE FREQUENCY (Hz) 67.0 69.3 71.9 74.4 77.0 79.7 82.5 85.4 88.5 91.5 94.8 97.4 100.0 103.5 107.2 110.9 114.8 118.8 123.0 127.3 131.8 136.5 141.3 146.2 151.4 156.7 159.8 162.2 165.5 167.9 171.3 173.8 177.3 179.9 183.5 186.2 189.9 192.8 196.6 199.5 203.5 206.5 210.7 218.1 225.7 229.1 233.6 241.8 250.3 254.1 Your repeater may or may not re-transmit a CTCSS tone - some systems just use CTCSS to control access to the repeater, but don t pass it along when transmitting. If the S-Meter deflects, but the VX-127 is not passing audio, repeat steps 1 through 4 above, but rotate the DIAL so that TSQ disappears - this will allow you to hear all traffic on the channel being utilized. DCS OPERATION Another form of tone access control is Digital Code Squelch, or DCS. It is a newer, more advanced tone system which generally provides more immunity from false paging than does CTCSS. The DCS Encoder/Decoder is built into your VX-127, and operation is very similar to that just described for CTCSS. Your repeater system may be configured for DCS; if not, DCS is frequently quite useful in Simplex operation if your friend(s) use transceivers equipped with this advanced feature. Just as in CTCSS operation, DCS requires that you set the Tone Mode to DCS and that you select a tone code. 1. Press the [SET( )EMG] key momentarily to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 44: SQL.TYP. 3. Press the [F] key momentarily to enable adjustment of this Item. 4. Rotate the DIAL knob until the DCS indication appears on the display; this activates the DCS Encoder/Decoder. 5. Press the [F] key to save the new setting. 6. Rotate the DIAL knob to select Set Mode Item 13: DCS.COD. 7. Press the [F] key momentarily to enable adjustment of the DCS code. 8. Rotate the DIAL knob to select the desired DCS Code (a threedigit number). Ask the repeater owner/operator if you don t know DCS Code; if you are working simplex, just set up the DCS Code to be the same as that used by your friend(s). 9. When you have made your selection, press the [F] key momen- 24 VX-127 OPERATING MANUAL

tarily, then press the PTT switch to save the new settings and exit to normal operation. Remember that the DCS is an Encode/Decode system, so your receiver will remain muted until a matching DCS code is received on an incoming transmission. Switch the DCS off when you re just tuning around the band! CTCSS/DCS/EPCS OPERATION TONE SEARCH SCANNING In operating situations where you don t know the CTCSS or DCS tone being used by another station or stations, you can command the radio to listen to the incoming signal and scan in search of the tone being used. Two things must be remembered in this regard: DCS OPERATION DCS CODE 023 025 026 031 032 036 043 047 051 053 054 065 071 072 073 074 114 115 116 122 125 131 132 134 143 145 152 155 156 162 165 172 174 205 212 223 225 226 243 244 245 246 251 252 255 261 263 265 266 271 274 306 311 315 325 331 332 343 346 351 356 364 365 371 411 412 413 423 431 432 445 446 452 454 455 462 464 465 466 503 506 516 523 526 532 546 565 606 612 624 627 631 632 654 662 664 703 712 723 731 732 734 743 754 You must be sure that your repeater uses the same tone type (CTCSS vs. DCS). Some repeaters do not pass the CTCSS tone; you may have to listen to the station(s) transmitting on the repeater uplink (input) frequency in order to allow Tone Search Scanning to work. To scan for the tone in use: 1. Set the radio up for either CTCSS or DCS Decoder operation (see the previous discussions). In the case of CTCSS, will appear on the display; in the case of DCS, will appear on the display. 2. Press the [SET( )EMG] key momentarily to enter the Set mode. 3. Rotate the DIAL knob to select Set Mode Item 44: SQL.TYP when TONE SQL is selected, or select Set Mode Item 13: DCS.COD when DCS is selected 4. Press the [F] key momentarily to enable adjustment of the selected Set Mode Item. 5. Press and hold in the [ (MHz)] or [ (MHz)] key for one second to start scanning for the incoming CTCSS or DCS tone/ code. 6. When the radio detects the correct tone or code, it will halt on that tone/code, and audio will be allowed to pass. Press the [F] key to lock in that tone/code, then press the [F] key followed by the PTT switch to exit to normal operation. If the Tone Scan feature does not detect a tone or code, it will continue to scan indefinitely. When this happens, it may be that the other station is not sending any tone. You can press the PTT switch to halt the scan at any time. VX-127 OPERATING MANUAL 25

CTCSS/DCS/EPCS OPERATION TONE SEARCH SCANNING You also can press the MONI key during Tone Scanning to listen to the (muted) signal from the other station. When you release the MONI key, Tone Scanning will resume after about a second. Tone Scanning works either in the VFO or Memory modes. EPCS (ENHANCED PAGING & CODE SQUELCH) The VX-127 includes an Enhanced CTCSS tone encoder/decoder and a dedicated microprocessor providing paging and selective calling features. This allows you to place a call to a specific station (Paging), and to receive calls of your choice directed only to you (Code Squelch). The paging and code squelch systems use two pairs of (alternately switched) CTCSS tones which are stored in the pager memories. Basically, your receiver remains silent until it receives the CTCSS tone pair that matches those stored in the Receiving Pager Memory. The squelch then opens so the caller is heard, and the paging ringer immediately sounds, if activated. When you close the PTT switch to transmit, the CTCSS tone pair which is stored in the Transmitting Pager Memory will be transmitted automatically. On the paged radio, the squelch will close automatically after the incoming page ends. Storing the CTCSS Tone Pairs for EPCS Operation 1. Press the [SET( )EMG] key momentarily to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 18: ECS.CDR for the Receiving CTCSS Tone Pair or Set Mode Item 19: ECS.CDT for the Transmitting CTCSS Tone Pair. 3. Press the [F] key momentarily to enable adjustment of this Set Mode Item. 4. Rotate the DIAL knob to set the CTCSS Tone number which corresponds to the first tone of the CTCSS Tone Pair. 5. Press the [ (MHz)] or [ (MHz)] key, then rotate the DIAL knob to set the CTCSS Tone number which CTCSS TONE NUMBER corresponds to the second tone of the CTCSS No. 01 Hz 67.0 No. 11 Hz 94.8 No. 21 Hz 131.8 No. 31 Hz 171.3 No. 41 Hz 203.5 02 69.3 12 97.4 22 136.5 32 173.8 42 206.5 Tone Pair. 03 71.9 13 100.0 23 141.3 33 177.3 43 210.7 6. Press the PTT switch to 04 74.4 14 103.5 24 146.2 34 179.9 44 218.1 save the new setting 05 77.0 15 107.2 25 151.4 35 183.5 45 225.7 06 79.7 16 110.9 26 156.7 36 186.2 46 229.1 and exit to normal operation. 08 85.4 18 118.8 28 162.2 38 192.8 48 241.8 07 82.5 17 114.8 27 159.8 37 189.9 47 233.6 09 88.5 19 123.0 29 165.5 39 196.6 49 250.3 10 91.5 20 127.3 30 167.9 40 199.5 50 254.1 26 VX-127 OPERATING MANUAL

CTCSS/DCS/EPCS OPERATION EPCS (ENHANCED PAGING & CODE SQUELCH) The VX-127 does not recognize the order of the 1st tone and the 2nd tone. In other words, for example, the VX-127 considers both CTCSS pairs 10, 35 and 35, 10 to be identical. Activating the Enhanced Paging & Code Squelch System 1. Press the [SET( )EMG] key momentarily to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 44: SQL.TYP. 3. Press the [F] key momentarily to enable adjustment of this Item. 4. Rotate the DIAL knob until the ECS indication appears on the display; this activates the Enhanced Paging & Code Squelch System. 5. Press the [F] key momentarily, then press the PTT switch to save the new setting. 6. To disable the Enhanced Paging & Code Squelch, just repeat the above procedure, rotating the DIAL knob to select OFF in step 4 above. When the Enhanced Paging & Code Squelch feature is activated, the icon will blink on the display. CTCSS/DCS/EPCS BELL OPERATION During CTCSS Decode, DCS, or EPCS operation, you may set up the VX-170 such that a ringing bell sound alerts you to the fact that a call is coming in. Here is the procedure for activating the CTCSS/DCS/EPCS Bell: 1. Set the transceiver up for CTCSS Decode ( Tone Squelch ), DCS, or EPCS operation, as described previously. 2. Adjust the operating frequency to the desired channel. 3. Press the [SET( )EMG] key momentarily to enter the Set mode. 4. Rotate the DIAL knob to select Set Mode Item 7: BELL. 5. Press the [F] key momentarily to enable adjustment of this Item. 6. Rotate the DIAL knob to set the desired number of rings of the Bell. The available choices are 1 T, 3 T, 5 T, or 8 T rings, CONT (continuous ringing), or OFF. 7. Press the PTT switch momentarily to save the new setting and exit to normal operation. When you are called by a station whose transceiver is sending a CTCSS tone, DCS code, or CTCSS code pair which matches that set into your Decoder, the Bell will ring in accordance with this programming. When the CTCSS/ DCS/EPCS Bell is activated, the icon will appear at the upper right corner on the LCD. VX-127 OPERATING MANUAL 27

CTCSS/DCS/EPCS OPERATION SPLIT TONE OPERATION The VX-127 can be operated in a Split Tone configuration via the Set mode. 1. Press the [SET( )EMG] key momentarily to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 43: SPLIT. 3. Press the [F] key momentarily to enable adjustment of this Set Mode Item. 4. Rotate the DIAL knob to select ON (to enable the Split Tone feature). 5. Press the PTT switch momentarily to save the new setting and exit to normal operation. When the Split Tone feature is activated, you can see the following additional parameters following the DCS parameter (while selecting the Set Mode Item 44: SQL.TYP): D: DCS Encode only (the icon will blink during operation) T DCS: Encodes a CTCSS Tone and Decodes a DCS code (the icon will blink and the icon will appear during operation) D TSQL: Encodes a DCS code and Decodes a CTCSS Tone (the icon will appear and the icon will blink during operation) Select the desired operating mode from the selections shown above. TONE CALLING (1750 HZ) If the repeaters in your country require a 1750-Hz burst tone for access (typically in Europe), you can set the MONI key to serve as a Tone Call switch instead. To change the configuration of this switch, we again use the Set Mode to help us. 1. Press the [SET( )EMG] key momentarily to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 27: M/T-CL. 3. Press the [F] key momentarily to enable adjustment of this Set Mode Item. 4. Rotate the DIAL knob to select T-CALL on the display. 5. Press the PTT switch to save the new setting and exit to normal operation. To access a repeater, press and hold in the MONI key for the amount of time specified by the repeater owner/operator. The transmitter will automatically be activated, and a 1750- Hz audio tone will be superimposed on the carrier. Once access to the repeater has been gained, you may release the MONI key, and use the PTT switch for activating the transmitter thereafter. 28 VX-127 OPERATING MANUAL

MEMORY MODE The VX-127 provides a wide variety of memory system resources. These include: 200 Standard memory channels, numbered 1 through 200. A Home channel, providing storage and quick recall of one prime frequency. 10 sets of band-edge memories, also known as Programmable Memory Scan channels, labeled L1/U1 through L10/U10. 10 Memory Banks, labeled BANK 1 through BANK10. Each Memory Bank can be assigned up to 200 channels from the standard memory channels. 10 Weather Broadcast Channels. MEMORY STORAGE 1. Select the desired frequency, while operating in the VFO mode. Be sure to set up any desired CTCSS or DCS tones, as well as any desired repeater offset, now. The power level may also be set at this time, if you wish to store it. 2. Press and hold in the [F] key for one second. 3. Within ten seconds of releasing the [F] key, you need to make a decision regarding channel storage. The microprocessor will automatically select the next-available free channel (a memory register on which no data has been stored), so you may not wish to make any change; if this is the case, proceed to step 4. If you wish to select a different channel number into which to store the data, rotate the DIAL knob to select the desired memory channel. You may jump 10 memory channels, if you re in a hurry (11 21 31 ) by pressing the [VFO(PRI)] key (multiple times, if necessary). 4. Press the [F] key once more to store the frequency into memory. 5. You still will be operating in the VFO mode, so you may now enter other frequencies, and store them into additional memory locations, by repeating the above process. Storing Independent Transmit Frequencies ( Odd Splits ) All memories can store an independent transmit frequency, for operation on repeaters with non-standard shift. To do this: 1. Store the receive frequency using the method already described under MEMORY STORAGE (it doesn t matter if a repeater offset is active). 2. Tune to the desired transmit frequency, then press and hold in the [F] key for one second. 3. Within ten seconds of releasing the [F] key, rotate the DIAL knob to select the same memory channel number as used in step 1 above. 4. Press and hold in the PTT switch, then press the [F] key once more momentarily while holding the PTT switch in (this does not key the transmitter). Whenever you recall a memory which contains independently-stored transmit and receive frequencies, the indication will appear in the display. VX-127 OPERATING MANUAL 29